Sous la forme la plus simple: A = 13/25 x 75/39 - 8/9 x 15/16
B = 3- 7/12 x 36/49
C = (3/4 +2) x (13/7 - 1)
Calculer en lignes:
D = 56 - (23 - 28) + (15 - 45)
E = 4,45 + [ 5,25 - (12,35 + 17,65)] - (23,15 + 16,5)
B = 3- 7/12 x 36/49
C = (3/4 +2) x (13/7 - 1)
Calculer en lignes:
D = 56 - (23 - 28) + (15 - 45)
E = 4,45 + [ 5,25 - (12,35 + 17,65)] - (23,15 + 16,5)
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